CVE-2026-23162 [High] | Security Vulnerability in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: drm/xe/nvm: Fix double-free on aux add failure After a successful auxiliary_device_init(), aux_dev->dev.release (xe_nvm_release_dev()) is responsible for the kfree(nvm). When there is failure with auxiliary_device_add(), driver will call auxiliary_device_uninit(), which call put_device(). So that the .release callback will be triggered to free the memory associated with the auxiliary_device. Move the kfree(nvm) into the auxiliary_device_init() failure path and remove the err goto path to fix below error. " [ 13.232905] ================================================================== [ 13.232911] BUG: KASAN: double-free in xe_nvm_init+0x751/0xf10 [xe] [ 13.233112] Free of addr ffff888120635000 by task systemd-udevd/273 [ 13.233120] CPU: 8 UID: 0 PID: 273 Comm: systemd-udevd Not tainted 6.19.0-rc2-lgci-xe-kernel+ #225 PREEMPT(voluntary) ... [ 13.233125] Call Trace: [ 13.233126] <TASK> [ 13.233127] dump_stack_lvl+0x7f/0xc0 [ 13.233132] print_report+0xce/0x610 [ 13.233136] ? kasan_complete_mode_report_info+0x5d/0x1e0 [ 13.233139] ? xe_nvm_init+0x751/0xf10 [xe] ... " v2: drop err goto path. (Alexander) (cherry picked from commit a3187c0c2bbd947ffff97f90d077ac88f9c2a215)

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-02-15	—	0.02%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-02-15

—

0.02%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

5.9

[email protected]

OS Trackers for CVE-2026-23162

vendor	priority	summary	link
`debian`	unimportant	CVE-2026-23162 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2026-23162
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2026-23162
`suse`	medium	CVE-2026-23162 severity moderate: SUSE including 26 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 228 product×package rows across 40 product lines (SUSE Linux Enterprise High Availability Extension 15 SP7, SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS, … (40 product lines)): Known Not Affected 228.	https://www.suse.com/security/cve/CVE-2026-23162/
`ubuntu`	medium	CVE-2026-23162 medium priority: Ubuntu including 157 source packages (linux, linux-allwinner-5.19, …), 1256 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): DNE 871, ignored 165, not-affected 119, released 83, needed 18.	https://ubuntu.com/security/CVE-2026-23162

Affected software / configurations for CVE-2026-23162

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 6.17.1, < 6.18.9	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	6.17	cpe:2.3:o:linux:linux_kernel:6.17:-::::::
linux	linux_kernel	6.17	cpe:2.3:o:linux:linux_kernel:6.17:rc7::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc1::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc2::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc3::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc4::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc5::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc6::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc7::::::

References for CVE-2026-23162

URL	Tags
https://git.kernel.org/stable/c/32887d8e4bc0696b3cb6c5915a42b39cfd3434f4	Patch
https://git.kernel.org/stable/c/8a44241b0b83a6047c5448da1fff03fcc29496b5	Patch

URL

CVE-2026-23162 | drm/xe/nvm: Fix double-free on aux add failure

Exploit prediction scoring system (EPSS) score for CVE-2026-23162

Common vulnerability scoring system (CVSS) metrics for CVE-2026-23162

Weakness enumeration for CVE-2026-23162

OS Trackers for CVE-2026-23162

Affected software / configurations for CVE-2026-23162

References for CVE-2026-23162